hedwigai

Name: hedwigai
Author: un-seen

by un-seenversion 1.2.0i★ –iRuns in the cloud

Registry namecom.hedwigai/hedwigai

Install

Overview

Description from the maker (original English)

Check every reference in a paper, compile LaTeX to PDF, and get cited data: SEC, trade, web traffic.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi0 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Docs, sheets & office work

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 0 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.hedwigai.com

Run this in your terminal

claude mcp add --transport http hedwigai https://mcp.hedwigai.com

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "hedwigai": {
      "url": "https://mcp.hedwigai.com"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "hedwigai": {
      "type": "http",
      "url": "https://mcp.hedwigai.com"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.hedwigai.com

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

! Caution
Maker matches the repo
The publisher (hedwigai.com) is not the repo owner (un-seen); someone else may have listed it
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 2183 servers in this category
Published to the registry more recently than 58% of the other 2183 servers in this category
Basic checks equal to or better than 32% of the other 2183 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is hedwigai safe?

It passed 0 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.2.0) reached the registry 22 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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MCP Server for Excel

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Overleaf MCP: check and compile your Overleaf paper from Claude Code, Codex or Cursor

Work on an Overleaf project with the AI agent you already use. Through one hosted MCP server, hedwigai, your agent can:

Check every reference in the `.bib`. Each entry is looked up in Crossref, at doi.org and on the web. It comes back found, found with a different year or authors, or not found. A DOI that belongs to a different paper, and a paper that has been retracted, are flagged.
Check every sentence that cites a reference. The cited work is read, and the sentence comes back supported, contradicted or unsupported, with the passage that settles it.
Compile the project to a PDF. Real TeX (Tectonic), with BibTeX and journal classes such as IEEEtran, acmart and elsarticle, up to 4 minutes a run, with nothing to install. If it fails, the failing line comes back for the agent to fix.

Overleaf has no MCP server of its own. Most community servers reach a project through Overleaf's Git integration (a paid Overleaf plan) or your login. Some compile with a TeX you install yourself, and they match \cite keys to the .bib. None of them checks that a reference is real. This repository is the setup for doing that, and it works with Overleaf's free plan.

hedwigai is not affiliated with Overleaf.

1. Get your Overleaf project onto your machine

Use any one of these:

Overleaf plan	How
Free	In the editor: Menu → Download → Source (or File → Download as source (.zip)). Unzip it.
Paid	`git clone https://git.overleaf.com/` (the project's Git link), then `git push` your agent's changes back.
Paid	GitHub sync: pull the repository Overleaf syncs to.

Open that folder in your agent.

2. Connect the MCP server

The server is https://mcp.hedwigai.com. You sign in once with OAuth. A new account starts with $1 of credit and needs no card.

Claude Code

claude mcp add --transport http --scope user hedwigai https://mcp.hedwigai.com

Then run /mcp, choose hedwigai and Authenticate. Or copy this repository's .mcp.json into your project for a project-scoped server.

Codex

codex mcp add hedwigai --url https://mcp.hedwigai.com

codex mcp login hedwigai

Cursor: add this to ~/.cursor/mcp.json, then click Connect:

{ "mcpServers": { "hedwigai": { "url": "https://mcp.hedwigai.com" } } }

Claude (web or desktop): Settings → Connectors → Add custom connector, and paste https://mcp.hedwigai.com.

Skills (optional). In Claude Code, /plugin marketplace add un-seen/hedwigai-skills then /plugin install hedwigai@hedwigai adds the reference-checker and latex-papers skills, which walk the agent through each step.

3. Ask

Copy AGENTS.md (Codex, Cursor) or CLAUDE.md (Claude Code) into your project so the agent knows the workflow. Then ask:

Check every reference in references.bib and tell me which ones are wrong.

Check that each sentence citing a paper says what that paper says. Compile main.tex with render_document and fix any errors.

Try it on the example

example/ is a short paper whose refs.bib holds two planted problems:

pijoanmas2006 cites Pijoan-Mas (2006) with DOI 10.1016/j.red.2005.11.001. That DOI is registered to Domeij and Flodén's paper in the same issue. The right one is …11.002.
wakefield1998 cites a *Lancet* paper that was retracted in 2010.

Open example/ in your agent, connect the server and ask it to check the references. Both problems come back flagged. The paper also compiles as it stands.

No agent? Check a .bib in the browser

These free tools need no account (3 checks a day, 25 entries each):

BibTeX checker: paste a .bib from Overleaf or Zotero.
Retraction checker: find retracted papers in a reference list.
DOI checker: check that each DOI exists and names the paper you mean.
Citation checker: match every in-text citation to the reference list.

What it costs

Compiling is free. Checking references and citing sentences is billed per reference from prepaid credit; a thesis with 80 references comes to a few dollars. See pricing.

Limits

No live co-editing, track changes or history: those stay in Overleaf.
Shell escape is off, so minted does not run (use listings).
No biber (use BibTeX) and no LuaLaTeX.
The TeX package set is TeX Live 2022's.
"Not found" is a finding, not proof of fabrication: books, theses, reports and very new or non-English works are often missing from Crossref.

Overleaf MCP for Claude Code: the comparison with community Overleaf MCP servers.
A LaTeX MCP server: a whole IEEE paper compiled from Claude Code.
hedwigai-skills: the agent skills.

MIT licensed. Issues and pull requests are welcome.

hedwigai

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

Overleaf MCP: check and compile your Overleaf paper from Claude Code, Codex or Cursor

1. Get your Overleaf project onto your machine

2. Connect the MCP server

3. Ask

Try it on the example

No agent? Check a .bib in the browser

What it costs

Limits

More